org.drools.leaps.util
Class IteratorFromPositionToTableStart

java.lang.Object
  org.drools.leaps.util.IteratorFromPositionToTableStart

All Implemented Interfaces:

java.util.Iterator, TableIterator

Direct Known Subclasses:

ConstrainedIteratorFromPositionToTableStart, IteratorFromPositionToTableEnd

public class IteratorFromPositionToTableStart

extends java.lang.Object

implements TableIterator

Leaps specific iterator for leaps tables. relies on leaps table double link list structure for navigation

Constructor Summary

protected	IteratorFromPositionToTableStart(TableRecord record) constracts an leaps iterator to iterate over a single record.
protected	IteratorFromPositionToTableStart(TableRecord startRecord, TableRecord currentRecord)

Method Summary

boolean	hasNext()
boolean	isEmpty() single object iterator
java.lang.Object	next()
java.lang.Object	peekNext()
void	remove()
void	reset()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IteratorFromPositionToTableStart

protected IteratorFromPositionToTableStart(TableRecord record)

constracts an leaps iterator to iterate over a single record. Used for Dominant fact dimention iteration

Parameters:

record - to iterate over

IteratorFromPositionToTableStart

protected IteratorFromPositionToTableStart(TableRecord startRecord,
                                           TableRecord currentRecord)

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: TableIterator

single object iterator

Specified by:

isEmpty in interface TableIterator

Returns:

table iterator

reset

public void reset()

Specified by:

reset in interface TableIterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface TableIterator

next

public java.lang.Object next()

Specified by:

next in interface TableIterator

peekNext

public java.lang.Object peekNext()

Specified by:

peekNext in interface TableIterator

remove

public void remove()

Specified by:

remove in interface TableIterator